Sanitary-plumbing system.



No. 683,906. Patented 0st. 8, 190|. J. W. BRGWN.

' SANITARYPLUMBING SYSTEM.

(Application med Apr. '7, 1900.)

(No Mudal.)

NITED STATES' PATENT OFFICE.

JAMES WV. BROWN, OF BROCKTON, MASSACHUSETTS, ASSIGNOR OF ONE- HALF TOALBERT BLANCHARD, OF SAME PLACE.

SANITARY-PLUMBING SYSTEM;

SPECIFICA TION forming part of Letters Patent No. 683,906, datedOctober, 1901.

' Application filed April 7, 1900.

T0 all whom, t may concern:

Beit knownthat I, JAMES W. BROWN, a citizen of the UnitedStates,residing at Brockton, in the county of Plymouth and State ofMassachusetts, have invented a new and useful Sanitary-Plumbing System,of which the following is a specification.

My invention relates to new and useful improvements in sanitaryplumbing; and my objects are, first, to produce a novel coupling forconnecting the bowl to the soil-pipe, said coupling being capable ofready attachment to the lead sleeve; second, to effect a novel joint atthe juncture of the coupling or water-closet bend and the sleeve whichafter connection will render these elements absolutely inseparable andgas-tight; third, to provide a relief-vent for conveying backpressuregases from the waste trap or pipe to the stand or soil pipe at a pointabove the connection of the latter with the waste-pipe and to preventsiphoning of closet, and, fourth, t0 effect this last result by castingconnections for the bath-tub waste -pipe and the ventpipe integral withthe coupling member or bend in a manner to prevent the back pressureincident to iushing from forcing liquid into the vent-pipe.

To the accomplishment of these several objects the invention consists inconstructing a portion of a sanitary-plumbing system in the mannerhereinafter described, illustrated in the accompanying drawings, andsuccinctly pointed out in the appended claims.

In said drawings, Figure 1 is a general view of so much of a plumbingsystem as is necessary to the proper understanding of the invention,certain of the parts being shown in section. Fig. 2 is a perspectiveView of the water-closet bend or coupling member proper. Fig. 3 is adetail sectional view on the line of the axis of the bath-tub waste-pipeconnection, and Fig. 4 is a detail view of the lead sleeve.

Referring to the numerals of reference indicating corresponding parts inthe several views, lindicates the usual slab or flooring, provided withan opening 2 for the reception of a lead sleeve 3, extending through theopening, and to which the bowl iis designed to be connected. The mannerin which this connection is effected is not essential to the Serial No.12,002. (No model.)

floor or slab 1 and pierced by the securingbolts 6, passed through ahorizontal annular ange 7,.integral with or otherwise fixed to vthe bowl4, the lower constricted end 8 of which latter is passed into the sleeve3 and made air-tight by a packing-ring 9. This construction-that is tosay, the mounting of the bowl .tand the lead sleeve 3-is ordinary; butfor the purposes of my invention I provide the sleeve with alower-flared or inclined annular end 10.

11 indicates the usual soil or stand pipe, connected at its lower end tothe sewer and extending above the roof of the building to form a vent.This pipe is, as usual, provided with a bend connection 1-2, and theprimary object of my invention is to couple the sleeve 3 to theconnection 12 in a manner to facilitate the installation of thesystemand to render the connections absolutely gas-tight when once made.

13 indicates the coupling member or closetbend waste-trap, which isnothing more nor less than a bend or elbow-section of iron pipe tted atone end into the connection l2 and provided at its opposite end with anannular enlargement 14, having its end face hollowed out in a manner toform an inclined annular face 15, extending from the internal surface ofthe member and upon which is designed to be seated the flared end orinclined annular flange 10 of the lead sleeve 3. The hellowing out ofthe end face of the enlargement la to form the inclined annular face 15produces what may be termed a seal-chamber 16,dened within an annularwall 17,'made angular in cross-section to define an inwardlyconstrictedseal-retaining flange 18, the diameter of which at its upper edge isslightly greater than the diameter of the flared extremity l0 of thesleeve 3.

In practice the coupling memberl 0r bend 13 is presented under thesleeve 3 to cause the dared end 10 of said sleeve to pass into thehollowed face or seal-chamber 16 and into contact with the inclinedannular face 15. The corresponding inclination of these contact-facesserves to produce a close joint; but in order that this may be madepermanent IOO and that subsequent leakage may be prevented a molten seal19 as, for instance, leadis poured into the seal-chamber, which itcompletely fills. Inasmuch as the sleeve 3 and molten seal 19 are offusible metal, they will amalgamate to form, in effect, a heavy integralflange at the lower end of the sleeve, conforming exactly to theinterior of the sealcasing and having a diameter greater than theopening from said seal-chamber. It will be obvious that a joint formedin this Inanner will endure as long as the members connect, and I amthus enabled to quickly and conveniently install a system of sanitaryplumbing in a manner to forever preclude the possibility of leakage atthe points of connection. This, however, is only one of the desirablefeatures of my novel coupling. I further contemplate the provision ofmeans for connecting the waste-pipe 20 of a bath-tub 2l With the member13 and of means for relieving back pressure in the bend and forpreventing siphonic action to deplete the closettrap in a manner topreclude the possibility of the entrance of liquid into the vent-pipe.These ends I attain by casting upon one side of the coupling member orbend 13 a pipe connection 22, disposed angularly with respect to thehorizontal portion of the trap and designed for connection with theWaste-pipe 2O of the bath-tub. To this connection 22 I cast a vent-pipeconnection 23, divergently related to the Waste-pipe connection 22 andcommunicating with said connection 22 by an opening at the top of thelatter. To the ventpipe connection 23 I connect a vent-pipe 24E, whichextends rearwardly practically parallel with the coupling member orcloset-bend 13 and into proximity to the soil-pipe 1l,its upper 4endbeing carried a suitable distance above the connection 12 and connectedin any suitable manner to said soil-pipe. It will now be seen that whenthe bowl is iiushed the back pressure invariably occasioned by thisoperation will be relieved by the escape of gases to the Waste-pipeconnection 22 and thence through the vent-pipe connection 23 and venirpipe 24 to the soil-pipe 11 at a point above the connection of thelatter to the bowl and that siphonic action Which would draw the Awaterout of the closet-trap will be prevented.

Attention is here called to the pecular relation of the Waste and ventpipe connections 22 and 23, the latter communicating with the former atits top, the purpose of this particular arrangement being to permit thegases to rise from the Waste-pipe connection 22 into the vent-pipeconnection 23, thereby precluding the passage of liquid to thevent-pipe.

From the foregoing it will be observed that I have produced a simpleandingenious coupling member or closet-bend for sanitaryplumbing systemscomprehending novel means for effecting a permanent connection with thebowl-sleeve and means for relieving back pressure by permitting theescape of gases by a veut arranged in a manner to prevent the escape ofliquid thereto; but While the present embodiment of my invention appearsat this time to be preferable I do not desire to limit myself to thestructural details defined, but reserve the right to effect suchchanges, modifications,and variations as may come properly Within thescope of the protection prayed.

Obviously any desired type of closet-bowl may be employed in carryingout my invention. I consider the combination self-sealing closet apreferable type in most instances, however, and by preference Iinterpose at some point in the bath-tub Waste-pipe 2O a bottle or othersuitable form of seal, as

shown.

1. A coupling member for sanitary-plumbing systems comprising apipe-section,a Wastepipe connection extending from said pipesection, anda vent-pipe connection carried by and extending from the upper side ofthe Waste-pipe connection.

2. In a sanitary-plumbing system, the combination With a bowl andsoil-pipe, of an intel-mediate coupling member comprising a pipe-sectionhaving a Waste-pipe connection and a vent-pipe connection both locatedupon its exterior, the vent-pipe connection communicating With andextending from the up; per side of the Waste-pipe connection.

3. The combination with a pipe-section pro vided with a terminalseal-chamber defined between annular iianges terminating insubstantially the same plane, the outer iiange being inclined tooverhang the seal-chamber, of a fusible sleeve having its end extendedinto the sealchamber, and a fusible seal amalgamated with the end of thesleeve and extended under the overhanging flange.

it. The combination with a pipe section having a terminal seal-chamberdefined by an overhanging outer flange, and an inner flange disposedopposite the overhanging portion of the outer flange in the direction ofthe diameter of the pipe-section, of a fusible sleeve seated against theinner flange, and a seal. amalgamated with the sleeve and extended underthe overhanging portion of the outer iange.

5. A pipe-section having an overhanging outer flange and an inner flangedisposed opposite the overhanging portion of the outer flange in thedirection of the diameter of the pipe-section to form a seal-chamberbetween said flanges.

In testimony that I claim the foregoing as my own I have heretoafiixedmy signature in the presence of two witnesses.

JAMES W. BROWN.

Vituesses:

CARLToN S. BEALs, GEORGE M. TOWER.

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